N'-(9-((1R,3R,4R,7S)-1-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-7-hydroxy-2,5-dioxabicyclo[2.2.1]heptan-3-yl)-6-oxo-6,9-dihydro-3H-purin-2-yl)-N,N-dimethylformimidamide

N'-(9-((1R,3R,4R,7S)-1-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-7-hydroxy-2,5-dioxabicyclo[2.2.1]heptan-3-yl)-6-oxo-6,9-dihydro-3H-purin-2-yl)-N,N-dimethylformimidamide